∫x^2(1-x)^1⼀3dx

2024-12-13 02:27:50
推荐回答(2个)
回答1:

结果为:3/140 (1 - x)^(4/3) (9 + 12 x + 14 x^2), 顺便说一下,你的表达式写的有点小问题,我已经修改: (1 - x)^(1/3)

回答2:

(1-x)^1/3=t, 1-x=t^3,dx=-3t^2dt
∫x^2(1-x)^1/3dx
=∫(1-t^3)(-3t^3)dt
=3∫(t^6-t^3)dt
=3(t^7/7-t^4/4)+C
=3t^4(t^3/7-1/4)+C
把(1-x)^1/3=t代入即可